Sen. John Cornyn (R-Texas) and Sen. Bob Menendez (D-N.J.) sparred Sunday over how well their respective parties will do on Nov. 2.

Cornyn, who once predicted a tsunami that would wipe out Democratic majorities in Congress, seemed less confident that Republicans would run the table.

“We’re going to have a good day on Nov. 2,” he said on CNN's "State of the Union." “I don’t know how high and how wide that tsunami will be, but I think it’s going to be significant.”

That’s partly because, he said, President Barack Obama has “chosen to lecture people by telling them that he knows what’s better for them than they do.”

Menendez conceded that Democrats would probably have to deal with “losing some seats.”

But, despite the “volatile” election cycle, he predicted: “We will be in the majority in the United States Senate on Nov. 3.”

Later on the same show, Democrat Donna Brazile and Republican Ed Gillespie echoed their conclusions.
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"I think it will be a minimum of 45 and probably north of that in the House," Gillespie predicted for GOP gains. "So I think Republicans will capture control. I think we'll be very close in the Senate. I think we'll probably have a net gain of eight governorships, and it will be ten legislative chambers around the country that flip from Democratic to Republican. It's going to be a very big, wave election."

Brazile would not concede big losses for the Democrats.

" I think the Democrats will hold onto the House, hold onto the Senate. History suggests that we'll lose seats. Some of these seats are ruby-red districts that Democrats won in '06 and '08. We will retain a great many of these seats," she said.

Both, however, rejected the argument from Thomas Friedman, in a column in Sunday's New York Times, that a third-party candidate would have a major impact on the 2012 presidential election.

"I wouldn't be surprise if there were a third-party candidate who emerges, but I'm not sure that he's right in terms of the impact it's going to have," Gillespie said.